Swimables Pentair WhisperFlo IntelliFlo Diffuser Screws | 071660 | SW-21-166

The Swimables SW-21-166 Diffuser Screw Kit provides a reliable replacement for Pentair part 071660, used in both WhisperFlo and IntelliFlo pump models. This stainless steel fastener (#4-40 × 1-1/8″) secures the diffuser to the impeller housing, restoring proper pump alignment and stable hydraulics. Designed to resist corrosion and chemical exposure, the screws withstand demanding pool environments and repeated servicing. Packaged with two screws, the kit offers technicians and pool owners an easy solution for pump repairs, rebuilds, or when factory screws have corroded or failed.

Highlights

• Replaces Pentair 071660: Direct aftermarket match to Pentair’s original diffuser screw, offering seamless installation in compatible WhisperFlo and IntelliFlo pumps.

• Ensures Proper Hydraulic Function: Keeps diffuser locked in position against the impeller, preserving flow, reducing noise, and preventing damaging vibrations.

• Stainless Steel Strength: Built from corrosion-resistant stainless steel for long-lasting performance under chlorine, bromine, or saltwater pool conditions.

• Accurate Size & Threading: Precision-built at #4-40 × 1-1/8″, providing correct thread engagement and preventing stripped or misaligned fittings.

• Packaged for Convenience: Includes two screws, making it ideal for service kits or on-site pump rebuilds using a standard 3/32″ Allen hex key.

Includes

• (2) Diffuser Screws

Compatibility

• Pentair WhisperFlo Pump
• Pentair IntelliFlo Pumps

Additional Info

This section highlights the Swimables SW-21-166 diffuser screw, a stainless replacement for Pentair 071660. Learn how it installs, how it helps pump performance, and how to order online with fast shipping.

Installing the Screw After Ordering Online

The SW-21-166 secures the diffuser using a 3/32″ Allen key. Its precision length and threading ensure smooth installation without stripping.

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Preventing Noise and Misalignment

Replacing old screws with SW-21-166 helps prevent vibration, wobble, and flow loss caused by loose or missing fasteners.

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Ordering Online With Confidence

Product listings reference Pentair 071660, making it easy to confirm fit. Bundling with seal kits or impellers often qualifies for free shipping.

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